Memory: @ GB 1067 MHz DDR3
I think you meant to type 2 GB memory. You would likely realize a performance improvement by buying more. Your MBP ought to be able to address at least 4 GB.
Buy memory from Crucial or OWC / MacSales. Crucial has a utility you can download that examines your system and recommends upgrade options. You don't have to buy the memory from them, but those are the two most highly recommended vendors.
Completely erasing your computer and reconfiguring it as new is probably unnecessary.
Read this to determine if you would benefit by adding more memory: Using Activity Monitor to read System Memory and determine how much RAM is being used
Page ins: / Page outs:
This refers to the amount of information moved between RAM and the Mac's drive. This number is a cumulative amount of data that Mac OS X has moved between RAM and the Mac's drive. Note: The number inside the brackets shows recent page activity.
Tip: Page outs occur when the Mac has to write information from RAM to the hard drive (because RAM is full). Adding more RAM may reduce page outs.